Linux command question (ulimit)

I am running a bittorrent program and am getting the error that too many files are open.
I have to increase the number (default 1024) to about 10,000 or so.

I am running Fedora Cora 5 and Gnome.

I open a terminal (Applications -> Accessories - > Terminal)
I read the man page on ulimit.

I type 'ulimit -a' and see that the current is indeed 1024 open files.
I try 'ulimit -n 10000' and then 'ulimit -a' again and it has changed.
But my bittorrent program doesn't seem to think so, and more obvious is the fact, that when I close the terminal and then reopen another one I type 'ulimit -a' and the # of open files options is back at '1024'

You need to add the line to your .bash_profile. (i believe adding it to .bashrc might work as well.) Then log out and log back in. This should make the setting each time you log in. Just doing it the way you did would tie it to only that single terminal window.

when you set ulimit only applies to the process you are running under Applications -> Accessories - > Terminal, and its child processes
if you close the terminal and then reopen another one, that is a different process
can you start the bittorrent program from your shell under Applications -> Accessories - > Terminal after you set ulimit?
and there may still be a system limit beyond the process limit

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